This book brings together lessons learned in the clinical use of anorectal endosonography and manometry in paediatrics. In contrast to adult medicine, where they are virtually indispensable for specialists dealing with colo-proctology, in paediatrics endoanal ultrasound and anorectal manometry are still the prerogative of very few international centres. This book collects the results of a Workshop organised at the Paediatric Surgery Unit of Bologna, entitled "International Seminar on Endosonography and Anorectal Manometry in Paediatrics", and presents contributions from leading European experts. Focusing on the paediatric age group, this volume fills a gap in the paediatric gastroenterology literature, and will benefit all specialists wishing to use these methods in the management and treatment of common clinical problems, e.g. chronic constipation.